Eero Mesh WiFi Not Working with Smart Home Devices

Common Causes

• Smart home devices on the 2.4GHz band cannot see or connect to the eero network
• IoT devices require a separate SSID for the 2.4GHz band, which eero does not provide by default
• AP isolation or client isolation is inadvertently enabled
• Device firmware is outdated on the smart home device or the eero
• The smart home device is too far from the nearest eero unit
• UPnP, mDNS, or IGMP snooping settings are interfering with device discovery
• The eero network recently changed its password, and smart home devices still have the old credentials

Step 1: Identify Which Devices Are Affected

1. Open the eero app and go to the Home tab to see all connected devices.
2. Check which smart home devices appear as connected and which are missing from the list.
3. If a device does not appear in the eero app at all, it failed to connect to the Wi-Fi network. If it appears but is unresponsive, the issue may be with the device itself or with how eero routes traffic.
4. Note whether the affected devices are Wi-Fi only, Zigbee, Thread, or Bluetooth. The eero 6+ has a Thread border router but does not include Zigbee, so Zigbee devices need their own bridge.

Step 2: Fix 2.4GHz Connectivity Issues

Many smart home devices (especially older ones like smart plugs, smart bulbs, and basic sensors) only support 2.4GHz Wi-Fi. The eero 6+ uses a single SSID for both 2.4GHz and 5GHz bands, which can confuse some devices during setup.

1. During the smart home device setup process, bring the device close to the eero unit (within 5 feet). This encourages the eero to assign it to the 2.4GHz band.
2. If the device still does not connect, temporarily disable the 5GHz band on the eero. In the eero app, go to Settings > Troubleshooting > My device won't connect and follow the prompts to temporarily pause 5GHz.
3. Complete the smart home device setup while 5GHz is paused.
4. Re-enable 5GHz in the eero app after the device is connected. The device will remain on 2.4GHz.

Step 3: Restart Smart Home Devices

1. Power cycle the affected smart home device by unplugging it for 10 seconds and plugging it back in.
2. For battery-powered devices, remove and reinsert the batteries, or use the device's reset button.
3. After power cycling, wait 1 to 2 minutes for the device to reconnect to the eero network.
4. Check the device's own app (if applicable) to confirm it is online.

Step 4: Check for IP Address Conflicts

1. If multiple smart home devices are competing for the same IP address, they will intermittently disconnect.
2. In the eero app, look for devices with similar names or devices that keep appearing and disappearing.
3. To fix this, go to the eero app, tap on the affected device, and assign it a reserved IP address under the device's settings. This ensures it always gets the same IP.

Step 5: Verify Network Settings

1. In the eero app, go to Settings > Network Settings.
2. Ensure UPnP is enabled. Many smart home devices rely on UPnP for automatic port configuration and device discovery.
3. Make sure IPv6 is enabled if your smart home devices require it. Some newer Matter and Thread devices use IPv6 for communication.
4. Check that Thread is enabled in the eero settings so Thread-compatible devices can connect through the eero 6+'s built-in Thread border router.

Step 6: Re-Add Devices to Their Respective Apps

1. If a smart home device was working before but stopped after a network change (new password, new router, etc.), you may need to factory reset the device and set it up again in its manufacturer's app.
2. Most smart plugs, bulbs, and sensors have a factory reset procedure (usually pressing and holding a button for 10 to 15 seconds).
3. After resetting, set up the device again following the manufacturer's instructions, connecting it to the eero network.
4. Once connected in the manufacturer's app, add it to Alexa or your preferred smart home platform.

Step 7: Update eero Firmware

1. The eero 6+ updates firmware automatically. To check the current version, open the eero app and go to Settings > Software Version.
2. If an update is pending, restart the network to trigger the install: Settings > Network Settings > Restart Network.
3. Firmware updates often improve compatibility with smart home protocols including Thread and Matter.

When to Contact Support

If smart home devices connect to the eero network but cannot communicate with each other (for example, a smart speaker cannot discover a smart plug on the same network), there may be an internal routing or mDNS issue. Contact eero support through the eero app for advanced network diagnostics. If specific smart home devices refuse to connect to any Wi-Fi network, the problem is with that device, and you should contact its manufacturer.